Microwave-Assisted Hydrothermal Synthesis of Ni-Mg Layered Silicate Clays

Author(s): Fabien Baron, Suraj S.C. Pushparaj, Claude Fontaine, Matte V. Sivaiah, Alain Decarreau, Sabine Petit

Journal Name: Current Microwave Chemistry

Volume 3 , Issue 1 , 2016

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Graphical Abstract:


The synthesis of Ni-containing layered silicate clays from the lizardite-nepouite series (1:1) and kerolite-pimelite series (2:1) with random distribution of octahedral cations was feasible with the microwave-assisted hydrothermal synthesis method. These series were obtained from co-precipitate gels with Si2Mg3-xNixO7.nH2O and Si4Mg3-xNixO11.nH2O (x = 0, 0.5, 1, 1.5, 2, 2.5, and 3) compositions. Syntheses were performed at 220°C during 48 hours under equilibrium water pressure using microwave furnace. X-ray diffraction revealed pure 1:1 and 2:1 synthesized phyllosilicates for the lizardite and the kerolite series, respectively. Fourier transform infrared spectroscopy in both near and mid infrared regions revealed a random distribution of Ni cations in the octahedral sheet of 1:1 and 2:1 silicate clays, that is a good requirement for material applications, especially for the synthesis of metallic catalysts.

Keywords: Catalysis, kerolite, layered silicate, lizardite, microwave, nickel, silicate clay, synthesis.

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Article Details

Year: 2016
Published on: 30 October, 2015
Page: [85 - 89]
Pages: 5
DOI: 10.2174/2213335602666150317233416

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